package cn.jiyun.consumer.controller;

import cn.jiyun.consumer.client.UserClient;
import cn.jiyun.consumer.pojo.User;
import com.netflix.hystrix.contrib.javanica.annotation.DefaultProperties;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.util.List;

@RestController
@RequestMapping("/consumer")
@DefaultProperties(defaultFallback = "defaultFallback")
public class ConsumerController {
@Autowired
private RestTemplate restTemplate;
@Autowired
private UserClient userClient;
@Autowired
private DiscoveryClient discoveryClient;
    @GetMapping("/findById/{id}")
//    @HystrixCommand(fallbackMethod = "findByIdFallBack") //服务降级的方法名
//    @HystrixCommand
    public User findById(@PathVariable("id") Long id){
//        List<ServiceInstance> instances = discoveryClient.getInstances("user-service");
//        ServiceInstance serviceInstance = instances.get(0);
//      String url=  "http://"+serviceInstance.getHost()+":"+serviceInstance.getPort()+"/user/findById/" + id;
//        if(id == 1){
//            throw new RuntimeException("太忙了");
//        }
//        String url="http://user-service/user/findById/"+id;
//        String user = restTemplate.getForObject(url, String.class);
        User user = userClient.queryById(id);
        return user;

    }

    public String findByIdFallBack(Long id){
        return "服务端异常";
    }
    public String defaultFallback(){
        return "默认降级逻辑执行了";
    }
}
